cbcvebase.
CVE-2016-10229
published 2017-04-04

CVE-2016-10229: udp.c in the Linux kernel before 4.5 allows remote attackers to execute arbitrary code via UDP traffic that triggers an unsafe second checksum calculation…

PriorityP263critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
12.79%
95.8th percentile
udp.c in the Linux kernel before 4.5 allows remote attackers to execute arbitrary code via UDP traffic that triggers an unsafe second checksum calculation during execution of a recv system call with the MSG_PEEK flag.

Affected

17 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 4.5.1-1 (bookworm)linux 4.5.1-1 (bookworm)
googleandroid<= 7.1.1
googleandroid
linuxlinux_kernel>= 0 < 4.5.1-14.5.1-1
linuxlinux_kernel>= 0 < 4.5.1-14.5.1-1
linuxlinux_kernel>= 0 < 4.5.1-14.5.1-1
linuxlinux_kernel>= 0 < 4.5.1-14.5.1-1
linuxlinux_kernel>= 3.11 < 3.12.533.12.53
linuxlinux_kernel>= 3.13 < 3.14.773.14.77
linuxlinux_kernel>= 3.15 < 3.16.353.16.35
linuxlinux_kernel>= 3.17 < 3.18.453.18.45
linuxlinux_kernel>= 3.19 < 4.1.404.1.40
linuxlinux_kernel>= 3.2 < 3.2.763.2.76
linuxlinux_kernel>= 3.3 < 3.4.1133.4.113
linuxlinux_kernel>= 3.5 < 3.10.1033.10.103
linuxlinux_kernel>= 4.2 < 4.4.214.4.21
paloaltopan-os

Detection & IOCsextracted from sources · hover to see the quote

urlhttps://github.com/torvalds/linux/commit/197c949e7798fbf28cfadc69d9ca0c2abbf93191
  • Monitor for exploitation attempts targeting the UDP recv() syscall with MSG_PEEK flag — the vulnerability is triggered by crafted UDP traffic that causes an unsafe second checksum calculation during a recv system call with MSG_PEEK set.
  • For PAN-OS deployments, exploitation requires attacker access to the management network; restrict UDP-based access to the management plane and alert on unexpected UDP traffic originating from outside authorized management IP ranges.
  • Successful exploitation may manifest as a kernel panic or memory corruption leading to privilege escalation — monitor kernel logs for unexpected panics or oops messages on Linux hosts running kernels before 4.5.
  • ·Red Hat Enterprise Linux 5 and 6 are NOT affected — the vulnerable code is absent from those kernel packages.
  • ·Red Hat Enterprise Linux 7, Red Hat Enterprise MRG 2, and realtime kernels are NOT affected — they already contain the fixed commit.
  • ·PAN-OS Data Plane is NOT affected; only the management plane (Linux kernel) is vulnerable. Affected PAN-OS versions: 6.1.17 and earlier, 7.0, 7.1.10 and earlier, 8.0.2 and earlier.
  • ·The upstream fix was committed during the Linux 4.5 kernel merge window (December 2015); any kernel >= 4.5 is not vulnerable.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_redhat9.8CRITICAL
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